/Engine/Source/Developer/AssetTools/Public/IAssetTools.h
Given a set of packages to copy, generate the map of those packages to destination filenames
void GenerateAdvancedCopyDestinations ( [FAdvancedCopyParams](API\Developer\AssetTools\FAdvancedCopyParams) & InParams, const [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & InPackageNamesToCopy, const [UAdvancedCopyCustomization](API\Developer\AssetTools\UAdvancedCopyCustomization) * CopyCustomization, [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), [FString](API\Runtime\Core\Containers\FString) > & OutPackagesAndDestinations ) const